Wonder how she's going to get back to the UK...
Ocean liner?
Passage on a cargo vessel?
Or make an adventure of it and drive all the way to the tip of Alaska, get a lift on a trawler, do a cross-deck transfer to a Russian vessel, back to a Russian port, take the Trans Siberian Express and then the Orient Express* to London. That'll cost a bit more than a standard air fare, I'll wager.
I'm assuming she gets a no-fly ban, of course.
* Fun fact; every so often the Orient Express passes about 100 ft from where I'm sitting right now, at a floor to ceiling window. I always watch in case there's a swarthy-looking chap wearing a homberg clinging precariously to the roof of a car.